Astronomy Today

Ultraviolet Space Telescopes

What was the IUE satellite?

The International Ultraviolet Explorer (IUE) was launched in 1978, and obtained its first ultraviolet spectrum of an astronomical object on January 26, 1978. Although its last scientific spectrum was obtained on September 30, 1996, it remains in orbit today. IUE obtained more than 104,000 observations and gave astronomers the first accurate information about the ultraviolet properties of planets, stars, and galaxies—data that is still being used today to help interpret more current observations.


This is a web preview of the "The Handy Astronomy Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App